A study led by Héma-Québec, the provincial blood collection agency, supported by the CITF and featuring CITF-funded researcher, Dr. Andrés Finzi, showed that 2.23% of blood donors were seropositive for SARS-CoV-2 between May 25 and July 9, 2020: about four times higher than the number of PCR-confirmed COVID-19 cases during the same period.